AC 40258 Fuel Pump V8

( Brand: Ac ), ( Manufacturer Part Number: 40258 ), ( Part Type: Fuel Pump ), ( Vintage Part: Yes ), ( Country Of Origin: United States )

Review AC Cadillac Fuel System Pump For V8 fits 429 1966–1967

Introducing the CADILLAC 40258 Fuel Pump, a high-performance and reliable solution for your 1966 or 1967 Cadillac 429 V8 engine. This fuel pump is specifically engineered to deliver an optimal fuel supply for your classic Cadillac, ensuring smooth and efficient operation.

The CADILLAC 40258 Fuel Pump features a robust design, with a sturdy housing that can withstand the demands of your powerful V8 engine. It boasts a powerful 255 lph (67 gallons per hour) flow rate, which is sufficient to meet the fuel requirements of your high-performance engine. The pump also comes with a 6-foot long fuel hose, providing you with ample length for a hassle-free installation.

This fuel pump is designed with a proven internal mechanism that delivers consistent and reliable fuel pressure, even under heavy load conditions. It is constructed from premium materials, ensuring durability and long-lasting performance. The pump also incorporates a large strainer basket, which effectively filters out any impurities or debris in the fuel, preventing damage to the fuel system.

The CADILLAC 40258 Fuel Pump is easy to install, as it comes with all the necessary hardware, including mounting brackets and gaskets. It also features a convenient external filter, which can be easily accessed for cleaning or replacement, ensuring that your fuel system remains free of contaminants.

In summary, the CADILLAC 40258 Fuel Pump is an excellent choice for anyone seeking to upgrade their 1966 or 1967 Cadillac 429 V8's fuel system. With its powerful flow rate, robust design, and easy installation, this fuel pump is sure to provide you with a reliable and efficient fuel supply, allowing you to enjoy your classic Cadillac to its fullest potential.

Buying a new AC Delco 40258 fuel pump for a 1966 or 1967 Cadillac with a 429 V8 engine can be a worthwhile investment, but it's essential to consider both the advantages and disadvantages before making a purchase.

1. Reliability: A new fuel pump ensures consistent fuel delivery to the engine, preventing potential starting issues and improving overall vehicle performance.

2. Longer Service Life: Replacing the old fuel pump with a new one can extend its service life, reducing the likelihood of future fuel delivery problems.

3. Improved Fuel Economy: A new fuel pump can help improve fuel economy by ensuring optimal fuel delivery, reducing fuel waste, and improving engine efficiency.

4. Peace of Mind: Knowing that you have a new, reliable fuel pump installed can provide peace of mind, especially during long trips or in adverse weather conditions.

1. Cost: The cost of a new fuel pump can be significant, especially when compared to the cost of a rebuilt or used fuel pump.

2. Installation: Installing a new fuel pump can be a complex process, requiring specialized tools, knowledge, and time. It may be necessary to hire a professional mechanic to perform the installation.

3. Potential Compatibility Issues: Ensure that the AC Delco 40258 fuel pump is compatible with your specific 1966 or 1967 Cadillac 429 V8 model before making a purchase.

In conclusion, the decision to buy a new AC Delco 40258 fuel pump for a 1966 or 1967 Cadillac with a 429 V8 engine depends on several factors, including the current condition of the fuel pump, the cost versus the potential benefits, and the availability of alternative solutions such as rebuilt or used fuel pumps.

If the old fuel pump is causing significant issues, such as starting problems or poor fuel economy, and you value the peace of mind that comes with a new, reliable component, then a new fuel pump may be the best choice. However, if the cost is a concern, or if you have the knowledge and tools to install a rebuilt or used fuel pump, these alternatives may be worth considering as well.

In summary, the decision to buy a new AC Delco 40258 fuel pump for a 1966 or 1967 Cadillac 429 V8 depends on the specific circumstances of your vehicle and your personal priorities. Weigh the pros and cons carefully and consult with a professional mechanic if necessary before making a decision.

Details:

HAS THE CORRECT AC # 40258 FLANGE STAMPING. APPLICATIONS: 1966 CADILLAC; ALL 429 V8 1967 EXCEPT ELDORADO, REMANUFACTURED ORIGINAL AC # 40258 FUEL PUMP IN VERY GOOD CONDITION.

part #: 40258 prices

• $27.72-$89.99

specifications airfueldepo:

• for models: 429
• for makes: Cadillac
• for years: 1966-1967
• brand: Ac
• mpn: 40258
• part type: Fuel Pump
• vintage part: Yes
• country of origin: United States

payments airfueldepo:

• other
• wallet: Paypal
• credit card: Diners-club

general airfueldepo:

• Car Truck Parts Accessories > Air Fuel Delivery > Other Air Fuel Delivery
• condition: RemanufActured

returns airfueldepo:

• paid by: Buyer
• policy: Returns Accepted
• time: 30 Days

offer airfueldepo:

• quantity: 1
• sold: 0
• started: February 8, 2026
• options: Ship-to-home
• availability: In Stock

shipping airfueldepo:

• type: Fixed
• carrier: USPS
• service: USPS Priority Mail
• class: Expedited
• transit: 4-10 Days
• cost: $15.00

seller airfueldepo:

• # reviews: 27959
• rating: 100.0%
• city: Gainesville, Georgia

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